Contact

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Joan O’Brien

Executive Director

Iowa Certified Crop Advisors
900 Des Moines Street
Des Moines, Iowa 50309

• 1-800-383-1682
• 515-262-8960

Greg Mattson

4970 30^th Ave
Alta, Iowa 51002

• 712-296-4418
• gsmattson {at} gmail(.)com

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